Boiler.



PATBNTBD MAY 24, 1904.

J. G. BBGKLEY.

BOILER. APPLICATION IILED JAR. 16,1904.

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UNIT D STATES Patented May 24, 1904:.

PATENT OFFICE;

JOSEPH o. BECKLEY, OF. DAYTON, OHIO.

BOILER.

SPECIFICATION forming part of Letters Ifatent No. 760,840, dated May 24, 1904..

Application filed january 16, 1904. Serial No. 189,281. (No model.) I

To all whom it ma/y concern/. 2

ton, in the countyrof Montgomery and State of Ohio, have invented certain new anduseful Improvements in Boilers; and I do declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable oth-. ers skilled in the art towhich itappertains to make and use thesame, reference being had to the accompanying drawings, and to the letters of referencem'arked thereon, which form a part of this specification,

provements in marine boilers. I

The. improvements consist in placing in the rear of the boiler a bevy of water-tubes, which are connected with the rear of the boiler above.

the fire-box and below the fire-tubes at their forward ends and at their. rearwardends to a water-leg, between which and theupper portion of the boiler there is placed a water-drum.

Above the water-tubes thusplaced there is a baflle-wall consisting of a series of tiling, wh1ch deflects the flames and gases issuing from the fire-box or furnace and compels said flames and gases to surround'the'water tubes and travel to the rearward endsofsaid water-1 tubes before said flames and gases are permit ted to pass through the fire-tube's.-- Itwill thus be seen that instead of theflames and gases escaping directly from the furnace or fire-box to the fire-tubes they are utilized to. heat the water circulating through the water tubes, and thus the efficiency of the 'boiler is materially increased as compared withv common form of marine boilers.

The object of the invention is to increase the efliciency or horse-power of a .marine boilei" by utilizing the flames and gases which heretofore have been wasted by being allowed to pass directly and rapidly to the stack. In the present invention the flames and gases, as above indicated, are made to travel in direct contact with a bevy of water-tubes, which are located and attached to the boiler in the rear thereof.

Preceding a detail description of myinvention reference is madeto the accompanying drawings, of which- Figure 1 is a horizontal longitudinal sectional elevation of a marine boiler having my I Be it known. that I, J OSEPHO. BEOKLEY, a, citizen of theUnited States, residing at Dayimprovements applied thereto. Fig.2 is a vertical section/on the. line 1200 of Fig. .1.

In a detail description of the inventionsimilar reference characters indicate corresponding parts. 7

A designates a bevyof water-tubes the forward ends of which are attached to theboiler B above thefire-boXG .andthe rearward ends of which are attached to. the lower portion of the water-leg C. The water-leg'commuhi- .cates at its top with a circulating-drum D,

v j whichcommunicates with the upper portion This invention relates to new and useful im of the boiler. V V

E designates circulating-tubes which are interposed between the lower portion of the water-leg C and the lower-portion of the boiler B. The water-tubes A are covered with a wall of tiling F, which baffles the flames and gases I issued from the internal furnace G and causes said flames and gases to travel around said tubes rearwardly to the full lengths of said tubes, and thereby the water within said tubes is generated into steam as it passes to the boiler. I The water in said tubes being of much smaller volumes than the water in the boiler B is necessarily heated much more quickly andto a much higher temperature than is the water in the boiler. As before stated, the function of the tiling F is to force or direct the flames and gases throughout the lengths of the water-tubes A and against the waterthe combustion-chamber H, from whence they "pass through the bank of horizontal fire-tubes 'I, which are located, as usual, in the upper portion of the boiler. Heretofore in marine boilers the flames and gases passed directly -'from the furnace to the fire-tubes I, and the heat was utilized solely for heating the boiler and said fire-tubes'i In the present application the said heat is utilizechas beforestated, to heat the water-tubes A, after which it passes to the fire-tubes I, as before.

J designates a steel casing inclosing the space from the rear of the'boiler B to the nets of combustion within the space occupied by the water-tubes A and the. circulatingtubes E.

The water is fed into the bottom of the leg 0,. where they are deflected upwardly into water-legC andserving to confinethc prodboiler B and is caused to circulate through the lower circulating-tubes E and the circulating-drum D to the water-leg (J, from which it passes through the water-tubes A in generated steam to the middle portion of the boiler between the fire-tubes and the fire-box. The water passing through the tubes A being, as before stated, in smaller volumes quickly heats to a high degree of temperature and is caused to circulate rapidly into the boiler B in contact with the fire-tubes I, which superheat the same to a still higher degree of temperature, thus producing steam in the quickest possible time.

Having described my invention, I claim 1. In a boiler of the type specified, the combination of a boiler approximately the length of the fire-box, a series of fire-tubes mounted in said boiler, a horizontal circulating-drum connected to the rear end of the boiler above said fire-tubes, a circulating Water-leg connected to the rear end of said drum, a series of Water-tubes connected with the rear end of the boiler at their forward ends and to the bottom of the water-leg. at their rearward ends, the said water tubes being inclosed above by a wall of tiling to a point adjacent to the water-leg, said Wall being adapted to deflect the heat and flames issuing rearwardly from the furnace and thereby cause said heat to spread throughout the lengths of the watertubes before passing to the fire-tubes, substantially as set forth.

2. In a marine boiler, the combination with a boiler, and a series of fire-tubes located in the upper portion of said boiler, of a series of water-tubes having their forward ends connected with the boiler immediately below the rearward ends of the fire-tubes, a water-leg, to the lower end of which the ends of the said Water-tubes are connected, it deflecting-wall immediately above said water-tubes to cause the flames and gases issued from the furnace to travel the lengths of said water-tubes, said deflecting-wall terminating at a point in advance of the water-leg and permitting said flames and gases to travel upwardly above the deflecting-wall and to communicate with the fire-tubes, a drum forming a communication between the upper portion of the boiler and the upper end of the water-leg, and a series of circulating-tubes forming a communication between the lower portion of the boiler and the lower end of the water-leg, substantially as specified.

In testimony whereof I afiix my signature in presence of two Witnesses.

JOSEPH C. BECKLEY. \Vitnesses:

R. J. MoGAR'rY,

J OI-IN W. KALBFUS. 

